<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity {
    private $_id;

    /**
     * Authenticates a user.
     * The example implementation makes sure if the username and password
     * are both 'demo'.
     * In practical applications, this should be changed to authenticate
     * against some persistent user identity storage (e.g. database).
     * @return boolean whether authentication succeeds.
     */

    public function authenticate()
    {
        $user=users::model()->findByAttributes(array('username'=>$this->username));
        if($user===null)
            	{
		$this->errorCode=self::ERROR_USERNAME_INVALID;
		}	
	 else if($user->password!==md5($this->password))
		{            
                $this->errorCode=self::ERROR_PASSWORD_INVALID;
		}
        else {
            $this->_id=$user->__get('idUser');
            $this->errorCode=self::ERROR_NONE;
        }
        //$this->setState("sitelanguage", Yii::app()->getLanguage());
        return !$this->errorCode;
    }

    public function getId()
    {
        return $this->_id;
    }
}
?>